unlike dna, rna contains _________?

1. uracil
2. guanine
3. cytosine
4. adenine

Answer:

Medial Malleolus is the answer

The "exfoliation" or "shedding" of milk teeth is the name of the procedure.

The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).

Four Different Teeth Types and Their Purposes

The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:

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A simple food chain connects trees and bushes, giraffes (who consume trees and shrubs), and lions (that eat the giraffes). Each link in this chain feeds the one that follows.

All food chains originate from solar energy. This power is captured by plants. Every food chain and web contains at least two or three trophic levels. Typically, there are only four trophic levels. Several people eat food at different trophic levels. The primary consumers of plants, such as vegetables, are people.

A food chain describes who consumes whom. A food web is made up of all the food chains in an ecosystem. In an ecosystem, every organism occupies a specific trophic level, location, or network of relationships with other organisms. Animals that synthesise their own food through photosynthesis or chemosynthesis are represented at the bottom of the trophic pyramid as producers.

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Answer:Metaphase plate refers to sister chromatids lining up in the center of the cell. This event occurs during the metaphase of the cell division and it is the indication of this phase. Metaphase plate is a moment when all of the chromosomes organize, line up literally in a row and after that begin to.

Answer:

wait for the balance to show zeroes on the digital screen then Use tongs or gloves to place the empty container you will use for the substance to be measured on the balance platform. Fingerprints and other greases from your hands add mass and must be avoided for accurate measurements.

Explanation:

Answer:

Energy in an ecosystem: is part of an open system, is recycled and reused, is transferred through the food chain and is lost as heat.

Answer: The three ways are listed below

Explanation:

Composition, The renal artery carries deoxygenated blood to the kidney, while the ureter carries urine after it has been filtered by the kidney. Urine contains waste products filtered from the blood, while the blood in the renal artery still has all its components.

Origin: The liquid in the renal artery originated from the heart as deoxygenated blood, while the liquid in the ureter originated from the renal tubules in the kidney as urine. They have different origins and histories.

Functions: The blood in the renal artery is essential for oxygenating the kidney and removing waste, while the urine in the ureter serves to transport the waste products filtered by the kidney out of the body for excretion. They serve very different functions.

Some additional notes:

• Urine contains waste materials like urea, creatinine, uric acid, etc. removed from the blood. The renal artery blood does not contain these waste products.

• The urine in the ureter is no longer useful for transportation of oxygen and nutrients. That is the purpose of the blood in the renal artery.

• The blood in the renal artery becomes deoxygenated after passing through the kidney, while the urine in the ureter remains oxygenated after being filtered.

• Manipulating the flow in the renal artery or ureter impacts the kidney differently. Reducing renal artery flow would damage the kidney, while reducing ureter flow would cause urine buildup.

• Urine volume and composition changes as it moves through the renal tubules and collects in the renal pelvis before entering the ureter. Blood composition remains largely unchanged as it passes through the kidney in the renal arteries.

Explanation: its D sodium because i know that

The order of the molecules from lowest to highest ability to pass through a phospholipid bilayer is: molecular oxygen, water, a sodium ion, glucose.

The ability of molecules to pass through a phospholipid bilayer depends on their size, polarity, and charge. Here's the order from lowest to highest ability to pass through a phospholipid bilayer:

1. Molecular oxygen (O2) - small and nonpolar, can easily pass through.
2. Water (H2O) - small and polar, can pass through but slower than molecular oxygen.
3. A sodium ion (Na+) - small but charged, has difficulty passing through without help from channels or transporters.
4. Glucose - large and polar, has the lowest ability to pass through without help from specific transport proteins.

So, the correct order is: molecular oxygen, water, a sodium ion, glucose.

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It is necessary for cells to have nucleus acids in their nucleus because they carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.

A nucleic acid is a chain of nucleotides that biological systems use to store genetic information. It produces the DNA and RNA molecules, which hold the data necessary for cells to produce proteins.

A "polymer" of "nucleotides," or a long molecule made up of them, is referred to as nucleic acid. All life on Earth needs nucleic acids to store genetic information; in other words, nucleic acids serve as the "source code" or fundamental blueprint for the creation of cells.

Your genetic information, which you acquired from your parents, is stored and transmitted by nucleic acids. Genes are unique pieces of nucleic acids that are in charge of creating every protein in your body. 

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Answer:

The sugar content

Explanation:

Bacteria are attracted to sugar, so maybe, they try to get the sugars and mold the bread.

Bread can easily get molds than the rice​ because of the following:

Mold are micro organisms that grow on the surface of left over food or food that are not properly preserved.

Although preservatives prevent bread from molding quickly but  Bread will tend  to always mold,  unless it is kept in the fridge.

Bread that are kept in a place that is cool will often last for days compare to  bread that are  kept in a place with heat as heat  will make the mold to quickly grow on the bread .

White rice that is dry can last upto 3 years or even more than if they are store in a room temperature.

Rice can only mold in a situation where the rice is moist.

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Answer:

A. Monosynaptic reflexes are composed of only two neurons between the stimulus and target cell, while polysynaptic reflexes contain three or more neurons.

Answer:

A. As it is given that Su(var) dominant suppressors of variegation mutant allele causes lesser white patches and more red patches in eyes as it is an inhibits or inactivates of PEV. If the Drosophila were heterozygous for the dominant enhancers of variegation E(var) mutation, there would be less red patches and more white patches.

b. Su(var) 1 gene encodes for the proteins that assist in the spreading of heterochromatin by inhibits the PEV which will be lost by null mutations while E(var)1 gene encodes for the proteins that restrict the spreading of heterochromatin by loss of function mutation

The carrying capacity of a species in an ecosystem is the continuous rotation of resources.  Option B.

As abiotic or biotic factors change so does the carrying capacity. Natural disasters can destroy ecosystem resources. When resources are destroyed, ecosystems can no longer support large populations. This reduces the payload. Increased food production through improved agricultural practices control of many diseases with modern medicine, and the use of energy to render historically uninhabitable areas.

Earth's habitable is an example of something that can expand its carrying capacity. Altering ecosystems can increase the carrying capacity of some species, as other species are overwhelmed and populated while others are dramatically reduced due to hunting. Carrying capacity is the maximum number of individuals in a population that the environment can support.

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Answer:

b) continuous rotation of resources

Explanation:

Continuous rotation of resources will cause a change to the carrying capacity of a species in an ecosystem. Therefore, the option (b) is the correct answer.

The concept that makes it legally right to reproduce a substantial portion of the works of another person with permission is Copyright. Option A

The concept of copyright grants the creator of an original work the sole rights to its use and distribution, usually for a limited time, with the intent of enabling the creator to receive compensation for their intellectual effort.

When someone else wishes to reproduce a substantial portion of those works, they must usually get permission from the copyright holder.

This permission can take the form of a license or contract that outlin the tems under which the work can be used.

The above answer is in response to the full question below;

Which of the following concepts makes it legally right to reproduce a substantial portion of the works of another person with permission?​

A. Copyright

B. Fair use

C. Freedom of information

D. Intellectual freedom

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Nebulae are Dust and gas where Stars can form, hence option A, B.

Although there are less than ten atoms per cubic meter in intergalactic space, it is not completely vacuum. Nature, after all, detests emptiness! When a few atoms are close enough to one another to clump together, a nebula starts to form. Naturally, the gravitational influence of atoms increases with the number of clumps they form. Eventually, a sizable gaseous cloud forms in space as a result of them being able to drag even more particles toward them.

A nebula is primarily a cloud of gas and dust in space; when there are several, they are collectively referred to as nebulae. Some of the most beautiful celestial phenomena are nebulae, and many of them have been given names that refer to things we are familiar with, like the land.

Therefore, option A, B are correct.

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Answer:

the first one creates genetic variation that aides in evolution

Explanation:

aides means like help and so asexual reproduction does not help in evolution because the organism is only making the same copy of itself

Explanation:

Option A is the correct answer.

Answer:

A. cloudy and rainy

hope it is helpful to you

Answer:

Images

Books

News

Shopping

Videos

Maps

Flights

Finance

All filters

1-Water is passively transported into the roots and then into the xylem. 2-The forces of cohesion and adhesion cause the water molecules to form a column in the xylem. 3- Water moves from the xylem into the mesophyll cells, evaporates from their surfaces and leaves the plant by diffusion through the stomata.

Answer:

greater than

Explanation:

the mass of an object is basically how big the watermelon is. usually, watermelons weigh more than 9 kg. imagine going to walmart and picking up a watermelon. at first glance, its purty huge. of course the the mass of an object, the more the weight of said object. since watermelons are pretty big, the overall mass is going to be big as well.

The mass of object is greater than other watermelon.

The mass of an object is basically how big the watermelon is. usually, watermelons weigh more than 9 kg. imagine going to walmart and picking up a watermelon.

At first glance, its purty huge. of course the the mass of an object, the more the weight of said object. since watermelons are pretty big, the overall mass is going to be big as well.

Although weight and mass may appear to be the same thing, they are actually completely different quantities. The total quantity of substance, or "stuff," in an item is its mass. Gravitational pull is what gives a thing weight.

Therefore, The mass of object is greater than other watermelon.

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Answer:

Bacteriorhodopsin

Explanation:

Purple Halobacterium species owe their color to bacteriorhodopsin, a light-sensitive protein.

Sustainable living is the attempt to reduce the use of natural resources like fossil fuels, forests, and others by the human society so that these resources remain available for future generation.

It is associated with maintaining the balance in the ecological, economical and societal needs to lead a healthy lifestyle. As it mainly emphasizes over the protection of the environment then it is also called as green living.

An individual  who pursues a lifestyle where he/she is concerned of using the resources in a limited quantity so the basic requirement of his/her is fulfilled along with preserving the remaining resources for the coming generation so that their basic requirements could be met, is following a sustainable living.

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The brain and spinal cord are part of the central nervous system.

The electrical charges that act as nervous signals are called action potentials or nerve impulses.

Jellyfish do not have a brain. Instead, their nervous system is called a nerve net.

After nervous systems began to develop in bilaterally symmetric animals, some developed ventral nerve cords, while chordates developed dorsal nerve cords.

Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called hydrostatic skeletons.

Exoskeletons do not grow with arthropods, and so occasionally must be shed and regrown from chitin.

Muscles move endo- and exoskeletons by contracting and relaxing.

Fertilization is the joining of two gametes called sperm and egg.

A fish that lays her eggs in a cluster is initiating cluster or mass fertilization.

Amniotic eggs are an adaptation by reptiles to allow for reproduction and embryo development on land.

Describe three different strategies used by three different animals to thermoregulate.

If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?

If you see a snake coiled up in a sunny patch of grass, you can probably conclude that the snake is an ectotherm. Ectotherms rely on external heat sources, such as the sun, to regulate their body temperature. By basking in the sun, the snake absorbs heat, which helps raise its body temperature to a suitable level for proper physiological functioning.

Answer:

1. central

2. action potential

3. nerve net

4. dorsal

5. hydrostatic

6. Exoskeletons

7. contraction/contracting

8. Fertilization

9. external fertilization

10. Eggs

11. Animals with fur thermoregulate by panting. Winged birds will flap against their mouths/heads to dissipate heat. Humans will produce sweat to evaporatively cool. Polar bears have developed blubber. Bears drop body temperatures during hibernation.

12. Seeing a snake using the warmth of the sun leads us to conclude that it is likely a thermo conformer that cannot produce its own body heat.

Answer:

H1 histone protein is not a part of histone octamer

Answer:

B-positive (B+): 9%

AB-positive (AB+): 4%

A-positive (A+): 30%

No, "Crick and Watson" is not a type of genetic test. Crick and Watson refer to James D. Watson and Francis Crick, who were scientists involved in the discovery of the structure of DNA. They proposed the double-helix structure of DNA in 1953, which provided the foundation for understanding genetic information and its role in heredity.

Genetic tests, on the other hand, are laboratory tests that analyze an individual's DNA or genes to provide information about their genetic makeup, potential genetic disorders, or predispositions to certain conditions.

These tests can be used for various purposes, such as diagnosing genetic disorders, predicting the risk of developing certain diseases, determining carrier status for genetic conditions, or providing ancestry and genealogical information.

While Crick and Watson made significant contributions to the field of genetics, they are not directly associated with genetic testing. Genetic tests are based on scientific advancements and technologies developed after their groundbreaking discovery of the DNA structure.

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Answer:

write in slope-intercept form, y = mx+b

Answer: y = 2x - 2

Explanation:

The validity of a scientific claim is assessed by examining the claim made by the scientists, verifying the facts, and examining the experiments that have been performed, all of which are verified by another seasoned scientist.

If a scientist believes more research is necessary or if they are aware of other research methods, they attempt to conduct the experiment based on the previously conducted experiment. The theory might be tested by the scientist to see what transpires, or they might obtain exactly what they predicted.

The social sciences rank among the most challenging academic fields, both methodologically and conceptually, because their deal with systems that are extremely complex, adaptive, and not strictly rule-bound.

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Fossils are animals and vegetable remains that get deposited or printed in sedimentary layers. Option A is correct: There have been changes in Earth's lifeforms over time.

Fossils are animal and vegetable rests found in different strata of sedimentary rocks. Sedimentary layers deposit chronologically, so they are used to reflect history. They keep in each layer some of the forms of life that inhabited that area in the past.

Fossils are very useful while dating ages. Index fossils are the fossilized organizms that only used to exist in a given era or geological period during evolution.

Fossil registers show that similar or different structured have been inhabiting the same area in the same period of time.

According to this framework, we can assume option A is correct: There have been changes in Earth's lifeforms over time.

In the image, from the bottom (oldest layers) to the upper part (most recent layers), we can see how the organisms inhabiting this area changed with the pass of time.

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